Re: [PATCH] checkpatch: add --json output mode

[Sasha Levin]

On Mon, Apr 06, 2026 at 03:00:25PM -0400, Konstantin Ryabitsev wrote:
> On Mon, Apr 06, 2026 at 01:00:39PM -0400, Sasha Levin wrote:
> > Add a --json flag to checkpatch.pl that emits structured JSON output,
> > making results machine-parseable for CI systems, IDE integrations, and
> > AI-assisted code review tools.
> >
> > The JSON output includes per-file totals (errors, warnings, checks,
> > lines) and an array of individual issues with structured fields for
> > level, type, message, file path, and line number.
> >
> > The --json flag is mutually exclusive with --terse and --emacs.
> > Normal text output behavior is completely unchanged when --json is
> > not specified.
>
> I see that it's writing json out manually, implementing its own escaping.
> While there are upsides to not requiring a perl json library, I think it's
> fair to expect that people who would want to get json output can probably make
> sure that JSON::XS is installed.
>
> Not a strong object, but seems cleaner that way.

No objection here, but from what I saw the checkpatch code only uses core perl
packages so I wanted to keep it that way.

--
Thanks,
Sasha